git-log: detect dup and fdopen failure

[git.git] / builtin-diff-files.c

diff --git a/builtin-diff-files.c b/builtin-diff-files.c
index 5d4a5c5828d1202b6d6b2eadffc51fc131a37dc5..6cb30c8e12488f42521df71a844a86a2e9a968c7 100644 (file)
--- a/builtin-diff-files.c
+++ b/builtin-diff-files.c
@@ -10,42 +10,26 @@
 #include "builtin.h"
 
 static const char diff_files_usage[] =
-"git-diff-files [-q] [-0/-1/2/3 |-c|--cc] [<common diff options>] [<path>...]"
+"git-diff-files [-q] [-0/-1/2/3 |-c|--cc|--no-index] [<common diff options>] [<path>...]"
 COMMON_DIFF_OPTIONS_HELP;
 
 int cmd_diff_files(int argc, const char **argv, const char *prefix)
 {
        struct rev_info rev;
-       int silent = 0;
+       int nongit = 0;
+       int result;
 
+       prefix = setup_git_directory_gently(&nongit);
        init_revisions(&rev, prefix);
        git_config(git_default_config); /* no "diff" UI options */
        rev.abbrev = 0;
 
-       argc = setup_revisions(argc, argv, &rev, NULL);
-       while (1 < argc && argv[1][0] == '-') {
-               if (!strcmp(argv[1], "--base"))
-                       rev.max_count = 1;
-               else if (!strcmp(argv[1], "--ours"))
-                       rev.max_count = 2;
-               else if (!strcmp(argv[1], "--theirs"))
-                       rev.max_count = 3;
-               else if (!strcmp(argv[1], "-q"))
-                       silent = 1;
-               else
-                       usage(diff_files_usage);
-               argv++; argc--;
-       }
+       if (!setup_diff_no_index(&rev, argc, argv, nongit, prefix))
+               argc = 0;
+       else
+               argc = setup_revisions(argc, argv, &rev, NULL);
        if (!rev.diffopt.output_format)
                rev.diffopt.output_format = DIFF_FORMAT_RAW;
-
-       /*
-        * Make sure there are NO revision (i.e. pending object) parameter,
-        * rev.max_count is reasonable (0 <= n <= 3),
-        * there is no other revision filtering parameters.
-        */
-       if (rev.pending.nr ||
-           rev.min_age != -1 || rev.max_age != -1)
-               usage(diff_files_usage);
-       return run_diff_files(&rev, silent);
+       result = run_diff_files_cmd(&rev, argc, argv);
+       return rev.diffopt.exit_with_status ? rev.diffopt.has_changes: result;
 }